English Words Starting With R

• rodney

  nounLow
  /ˈrɒdni/A masculine given name; can refer to a specific person.
• rodomontade

  adjectivenounverbverb-intransitiveC2
  /ˌrɒdəmɒnˈtɑːd/Boastful or bragging talk; arrogant boasting.
• rodrigo

  nounLow in general English discourse; high as a personal name within Hispanic/Lusophone contexts.
  /rɒˈdriːɡəʊ/A masculine given name of Spanish and Portuguese origin, meaning "famous ruler" or "renowned power".
• rodzinski

  nounRare
  /rɒˈdʒɪnski/A Polish-language surname of patronymic origin, meaning 'son of Rodzimir/Rodzisław' or 'son of the clan/family (ród)'.
• roe

  nounC1
  /rəʊ/The mass of eggs contained in the ovary of a female fish or shellfish, often used as food.
• roe deer

  nounC1
  /ˈrəʊ ˌdɪə/A small, graceful Eurasian deer (Capreolus capreolus) with a reddish-brown summer coat and greyish-brown winter coat, known for its short antlers and white rump patch.
• roebling

  nounVery Low
  /ˈrəʊblɪŋ/A proper noun referring to the family name of the engineers John A. Roebling and Washington Roebling, most famous for designing and constructing the Brooklyn Bridge in New York City.
• roebuck

  nounLow
  /ˈrəʊbʌk/A male roe deer.
• roeg

  nounVery Low / Obsolete
  /rəʊɡ/A dialectal or obsolete variant of 'rogue', meaning a dishonest or unprincipled person.
• roemer

  nounLow (C2)
  /ˈrəːmə/A type of German wine glass, typically with a green stem and a round, wide bowl.
• roentgen

  adjectivenounC1/C2
  /ˈrɜːntjən/A unit of measurement for ionizing radiation (X-rays or gamma rays), equal to the amount that produces one electrostatic unit of charge in one cubic centimetre of dry air.
• roentgen equivalent man

  nounVery Low (Specialised)
  /ˈrɜːntɡən ɪˈkwɪvələnt mæn/A unit of measurement for the dose equivalent of ionising radiation in humans, representing the biological effect of exposure.
• roentgen ray

  nounLow
  /ˈrɜːntɡən ˌreɪ/A type of high-energy electromagnetic radiation (X-ray), first systematically studied by Wilhelm Röntgen, capable of penetrating solid objects.
• roentgenium

  nounLow (Specialist)
  /rɒntˈɡɛniəm/A synthetic, highly radioactive chemical element with the symbol Rg and atomic number 111.
• roentgenize

  verbverb-transitiveVery Low / Obsolete / Technical
  /ˈrɜːntɡənaɪz/To expose to or treat with X-rays (roentgen rays).
• roentgenogram

  nounC1/C2
  /ˈrɜːntɡənəɡræm/An image produced by exposing a photographic plate or digital detector to X-rays.
• roentgenograph

  nounRare/Technical
  /ˈrɜːntɡənəˌɡrɑːf/A photographic image produced by passing X-rays (originally called Roentgen rays) through an object and capturing the resulting pattern on a sensitive surface.
• roentgenology

  nounVery Low / Specialised
  /ˌrɜːntɡɛˈnɒlədʒi/, /ˌrɒntɡɛˈnɒlədʒi/The branch of medicine concerned with the study and medical use of X-rays.
• roentgenometer

  nounRare
  /ˈrɜːntɡənˌɒmɪtə/An instrument for measuring X-rays or gamma rays.
• roentgenoscope

  nounExtremely Low
  /ˈrɜːntjənəˌskəʊp/A now-historical instrument, specifically a fluorescent screen, used for the visual examination of the internal structures of the body by means of X-rays.

Showing 4501–4520 of 5802 words.